Can't install Python

[Hugh Pittman]

Hi;

I've spent several hours over two days unsuccessfully trying to install Python.
I am trying to install it on a desktop computer running on a Windows10 64-bit / AMD CPU platform.
I have tried installing various versions.
I have also tried downloading Python from other websites, aside from python.org.
I have tried different sequences of steps.
For example, I have tried selecting Downloads > Windows > Python 3.85 from the .org download webpage.
Alternatively, I have tired specifying 'Windows x86-64 executable installer' under 'Files'.
Whatever I try, whenever I click on the phyton.exe file, Python seems to install, but only ultimately displays a Modify Setup screen.
I have tried the modifying and repairing options, but they all just lead to the same Modify Setup screen.
A message always say to contact pyton.org if the issues continue.
So, that is what I am now doing.
I can't think of what else I could try.
Any suggestions?

Cheers,
Hugh